scholarly journals Anthropogenic modification of forests means only 40% of remaining forests have high ecosystem integrity

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
H. S. Grantham ◽  
A. Duncan ◽  
T. D. Evans ◽  
K. R. Jones ◽  
H. L. Beyer ◽  
...  

AbstractMany global environmental agendas, including halting biodiversity loss, reversing land degradation, and limiting climate change, depend upon retaining forests with high ecological integrity, yet the scale and degree of forest modification remain poorly quantified and mapped. By integrating data on observed and inferred human pressures and an index of lost connectivity, we generate a globally consistent, continuous index of forest condition as determined by the degree of anthropogenic modification. Globally, only 17.4 million km2 of forest (40.5%) has high landscape-level integrity (mostly found in Canada, Russia, the Amazon, Central Africa, and New Guinea) and only 27% of this area is found in nationally designated protected areas. Of the forest inside protected areas, only 56% has high landscape-level integrity. Ambitious policies that prioritize the retention of forest integrity, especially in the most intact areas, are now urgently needed alongside current efforts aimed at halting deforestation and restoring the integrity of forests globally.


Author(s):  
H.S. Grantham ◽  
A. Duncan ◽  
T. D. Evans ◽  
K. Jones ◽  
H. Beyer ◽  
...  

AbstractMany global environmental agendas, including halting biodiversity loss, reversing land degradation, and limiting climate change, depend upon retaining forests with high ecological integrity, yet the scale and degree of forest modification remains poorly quantified and mapped. By integrating data on observed and inferred human pressures and an index of lost connectivity, we generate the first globally-consistent, continuous index of forest condition as determined by degree of anthropogenic modification. Globally, only 17.4 million km2 of forest (40.5%) have high landscape level integrity (mostly found in Canada, Russia, the Amazon, Central Africa and New Guinea) and only 27% of this area is found in nationally-designated protected areas. Of the forest in protected areas, only 56% has high landscape level integrity. Ambitious policies that prioritize the retention of forest integrity, especially in the most intact areas, are now urgently needed alongside current efforts aimed at halting deforestation and restoring the integrity of forests globally.



2020 ◽  
Vol 12 (24) ◽  
pp. 10676
Author(s):  
Yih-Ren Lin ◽  
Pagung Tomi ◽  
Hsinya Huang ◽  
Chia-Hua Lin ◽  
Ysanne Chen

Whereas indigenous people are on the frontlines of global environmental challenges such as climate change, biodiversity loss, and numerous other forms of critical planetary deterioration, the indigenous experiences, responses, and cultural practices have been underestimated in the mainstream frameworks of environmental studies. This paper aims to articulate a meaningful response to recent calls to indigenous and local knowledge on food as a source of resilience in the face of global climate change. By retrieving the values and practices indigenous people of Taiwan, specifically Tayal women, associate with human and non-human ecologies, our collaborative work with the indigenous community explores indigenous resilience and its relevance to indigenous cultural knowledge and global environmental concerns. Pivoting on the “Millet Ark” action, a Tayal conservation initiative of the bio-cultural diversity of millets, this study revolves around issues of how Tayal communities adapt to the climate change, how to reclaim their voice, heritage, knowledge, place, and land through food, and how to narrate indigenous “counter-stories” of resilience and sustainability. The cultural narrative of “Millet Ark” investigates indigenous way of preserving millet bio-cultural diversity and restoring the land and community heritage, inquiring into how Tayal people are adaptive and resilient to change and therefore sustainable through the cultural and social life of millets.



Author(s):  
Catherine Machalaba ◽  
Cristina Romanelli ◽  
Peter Stoett

The prediction of emerging infectious diseases (EIDs) and the avoidance of their tremendous social and economic costs is contingent on the identification of their most likely drivers. It is argued that the drivers of global environmental change (and climate change as both a driver and an impact) are often the drivers of EIDs; and that the two overlap to such a strong degree that targeting these drivers is sound epidemiological policy. Several drivers overlap with the leading causes of biodiversity loss, providing opportunities for health and biodiversity sectors to generate synergies at local and global levels. This chapter provides a primer on EID ecology, reviews underlying drivers and mechanisms that facilitate pathogen spillover and spread, provides suggested policy and practice-based actions toward the prevention of EIDs in the context of environmental change, and identifies knowledge gaps for the purpose of further research.



Author(s):  
Catherine Machalaba ◽  
Cristina Romanelli ◽  
Peter Stoett

The prediction of emerging infectious diseases (EIDs) and the avoidance of their tremendous social and economic costs is contingent on the identification of their most likely drivers. It is argued that the drivers of global environmental change (and climate change as both a driver and an impact) are often the drivers of EIDs; and that the two overlap to such a strong degree that targeting these drivers is sound epidemiological policy. Several drivers overlap with the leading causes of biodiversity loss, providing opportunities for health and biodiversity sectors to generate synergies at local and global levels. This chapter provides a primer on EID ecology, reviews underlying drivers and mechanisms that facilitate pathogen spillover and spread, provides suggested policy and practice-based actions toward the prevention of EIDs in the context of environmental change, and identifies knowledge gaps for the purpose of further research.



2019 ◽  
Vol 40 (1) ◽  
pp. 261-282 ◽  
Author(s):  
Howard Frumkin ◽  
Andy Haines

Multiple global environmental changes (GECs) now under way, including climate change, biodiversity loss, freshwater depletion, tropical deforestation, overexploitation of fisheries, ocean acidification, and soil degradation, have substantial, but still imperfectly understood, implications for human health. Noncommunicable diseases (NCDs) make a major contribution to the global burden of disease. Many of the driving forces responsible for GEC also influence NCD risk through a range of mechanisms. This article provides an overview of pathways linking GEC and NCDs, focusing on five pathways: ( a) energy, air pollution, and climate change; ( b) urbanization; ( c) food, nutrition, and agriculture; ( d) the deposition of persistent chemicals in the environment; and ( e) biodiversity loss.



2021 ◽  
Vol 6 (2) ◽  
pp. 79-83
Author(s):  
Lyudmila Levkovska ◽  
Alla Omelchenko

It is substantiated that the development of scientific and technological progress since the middle of the last century has led to intensive industrialization that, together with globalization processes, has resulted in global climate change. Nowadays, combating global warming is one of the most challenging and urgent tasks of humanity. Sweeping changes in natural systems, primarily an increase in the frequency and duration of droughts, floods, melting glaciers and rising water in the seven seas, biodiversity loss, etc., are the effect of global temperature rise. There is also a deterioration of living conditions and standards of the public, declining food security, especially in low- and middle-income countries. The research outlines the main trends in climate change. It is clarified the impact of climate change on the environment, man, society, and economy. The authors emphasize the significance and role of local actions towards adapting to the effects of climate change, which may become a tool for reducing climate risks in a global environment. It is justified that the challenge of climate change is addressed by joint efforts of each state of the world economic space. The effects of climate change and adaptation measures within economic realms are regarded by relying on global experience. The purpose of the article is to determine strategic guidelines for implementing adaptation measures to the impact of climate change to guarantee global environmental security. The research is based on a systems approach to solving the issue of guaranteeing global environmental security. In this context, it refers to the stimulation of constant economic modernization and the development of a new economic structure of the 21st century aimed at searching for effective mechanisms and tools promoting the measures for reducing greenhouse gas emissions. First of all, this means the implementation of energy-saving technologies, which will reduce the energy intensity of production and thus, increase economic energy efficiency and enhance global environmental security.



2021 ◽  
Vol 13 (5) ◽  
pp. 2868
Author(s):  
Nirunrut Pomoim ◽  
Robert J. Zomer ◽  
Alice C. Hughes ◽  
Richard T. Corlett

Protected areas are the backbone of biodiversity conservation but vulnerable to climate change. Thailand has a large and well-planned protected area system, covering most remaining natural vegetation. A statistically derived global environmental stratification (GEnS) was used to predict changes in bioclimatic conditions across the protected area system for 2050 and 2070, based on projections from three CMIP5 earth system models and two representative concentration pathways (RCPs). Five bioclimatic zones were identified composed of 28 strata. Substantial spatial reorganization of bioclimates is projected in the next 50 years, even under RCP2.6, while under RCP8.5 the average upward shift for all zones by 2070 is 328–483 m and the coolest zone disappears with two models. Overall, 7.9–31.0% of Thailand’s land area will change zone by 2070, and 31.7–90.2% will change stratum. The consequences for biodiversity are less clear, particularly in the lowlands where the existing vegetation mosaic is determined largely by factors other than climate. Increasing connectivity of protected areas along temperature and rainfall gradients would allow species to migrate in response to climate change, but this will be difficult in much of Thailand. For isolated protected areas and species that cannot move fast enough, more active, species-specific interventions may be necessary.



Author(s):  
Catherine Machalaba ◽  
Cristina Romanelli ◽  
Peter Stoett

The prediction of emerging infectious diseases (EIDs) and the avoidance of their tremendous social and economic costs is contingent on the identification of their most likely drivers. It is argued that the drivers of global environmental change (and climate change as both a driver and an impact) are often the drivers of EIDs; and that the two overlap to such a strong degree that targeting these drivers is sound epidemiological policy. Several drivers overlap with the leading causes of biodiversity loss, providing opportunities for health and biodiversity sectors to generate synergies at local and global levels. This chapter provides a primer on EID ecology, reviews underlying drivers and mechanisms that facilitate pathogen spillover and spread, provides suggested policy and practice-based actions toward the prevention of EIDs in the context of environmental change, and identifies knowledge gaps for the purpose of further research.



2021 ◽  
Author(s):  
Susanne M. Vogel ◽  
Sophie Monsarrat ◽  
Maya Pasgaard ◽  
Robert Buitenwerf ◽  
Adam C. Custock ◽  
...  

From global nature conservation policies to carbon off-set private initiatives, the focus on tree promotion, and tree planting in particular, as a nature-based solution to global environmental crises such as climatic change and biodiversity loss dominates the current discourse. Yet, this fixation on trees does not reflect a scientific consensus on the benefits of tree planting across diverse ecosystems and can have problematic implications from both an ecological and socio-political perspective. In this paper, we synthesise cross-disciplinary insights to challenge the common storyline of tree planting as a one-size-fits-all, nature-based solution to climate change and biodiversity loss. We discuss the appeal of tree planting as a panacea, and how this conflicts with reality, in which a diverse range of stakeholders represent various perspectives and pursue a plurality of goals. We assess the communicative aspects of trees and forests, exploring the symbolic power of a ‘tree’ and how practices in remote-sensing and scientific modelling reinforce the dominant tree planting narrative. We then reflect on the ecological and human contexts that need to be considered in planning of tree planting and how historical ecological baselines continue to influence ecosystem management goals. Finally, we explore how current conservation narratives value forest over other kinds of nature and demonstrate the important – but overlooked – role that non-forest landscapes such as open and semi-open vegetation play in climate change mitigation and biodiversity conservation. We conclude that we need to rethink the dominant tree-planting narrative, being mindful and critical of the socio-political drivers behind tree planting initiatives and potential biases, and allow ecological and sociocultural contexts to inform tree-promotion efforts and appropriateness.



2020 ◽  
Vol 22 (1) ◽  
pp. 93-103
Author(s):  
K. MacKinnon ◽  
K. Richardson ◽  
J. MacKinnon

Biodiversity loss and climate change are two of the greatest environmental challenges of our times and are inextricably interlinked. The most significant drivers of forest and biodiversity loss are habitat loss and fragmentation due to land use changes and overexploitation. These changes will be exacerbated by climate change with increasing land degradation and more conversion of forests to meet increasing demands for agriculture and forest resources. Protected areas are the cornerstones of biodiversity conservation. Currently terrestrial protected areas cover about 15 percent of the world's land surface but this is inadequate to fully represent global biodiversity, with many forest ecosystems poorly represented in protected area networks. Ensuring effective biodiversity conservation post-2020 will require both expansion of formal reserve systems and recognition and support for other effective conservation measures, under a diverse range of governance and management regimes. Expanding forest conservation efforts will not only protect biodiversity but is increasingly recognised as an efficient and cost-effective strategy to help societies to cope with climate change and its impacts.



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